SPICE MODEL of NJM2903 in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.

1. Device Modeling Report
COMPONENTS: VOLTAGE COMPARATOR
PART NUMBER: NJM2903
MANUFACTURER: NEW JAPN RADIO
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

2. BJT MODEL
Pspice model
Model description
parameter
IS Saturation Current
BF Ideal Maximum Forward Beta
CJC Zero-bias Collector-Base Junction Capacitance
TF Forward Transit Time
TR Reverse Transit Time
DIODE MODEL
Pspice model
Model description
parameter
IS Saturation Current
RS Series Resistance
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

3. Output Low Voltage
Simulation result
Simulation
Evaluation Circuit
U1
AOUT V+
VOL
A-IN A BOUT
- +
A+IN B B-IN
+ -
V1 GND B+IN
V2
NJM2903
1
I1 5
3m
0
Comparison Table
Isink = 3mA Measurement Simulation %Error
Vol (mV) 200 198.557 -0.7215
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

4. Sink Current
Simulation result
Simulation
Evaluation Circuit
U2
AOUT V+
A-IN A BOUT
- +
A+IN B B-IN
+ -
V4 GND B+IN
V5
sink NJM2903
1
1.5
5
0
Comparison Table
Vol = 1.5 V Measurement Simulation %Error
Isink (mA) 6 6.0172 0.2867
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

5. Response time (Rise time and Transition time)
Simulation result
OUTPUT
Evaluation Circuit
U2
AOUT V+
Tr
A-IN A BOUT
- +
A+IN B B-IN
+ -
RL1
GND B+IN
5.1k
V1 = -20m V1 NJM2903
V2 = 100m
TD = 0 V3
V21 TR = 1n
5 TF = 1n 5
PW = 5u
PER = 10u
0
Comparison Table
Measurement Simulation % Error
Rising delay time (us) 0.63 0.628491 -0.2395
Transition time (us) 0.12 0.124967 4.1392
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

6. Response time (Falling time)
Simulation result
OUTPUT
Evaluation Circuit
U1
AOUT V+
Tf
A-IN A BOUT
- +
RL A+IN B B-IN
+ -
5.1k
GND B+IN
V1 = -100m V5
V2 = 20m
NJM2903
TD = 0 V4
TR = 1n
5 V2 TF = 1n 5
PW = 5u
PER = 10u
0
Comparison Table
Measurement Simulation % Error
Falling delay time (us) 0.43 0.429501 -0.1160
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

7. Input Offset Voltage Characteristics
Simulation result
Simulation
Evaluation Circuit
U1
AOUT V+
output
A-IN A BOUT
- +
A+IN B B-IN
+ -
RL
GND B+IN
15k
V1 NJM2903
V3
V2 0Vdc
5
5
0
Comparison Table
Measurement Simulation %Error
Vio(mV) 7 6.9793 -0.2957
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

8. Av Characteristics
Simulation result
Simulation
Evaluation Circuit
U1
AOUT V+
output
A-IN A BOUT
- +
A+IN B B-IN
+ -
RL GND B+IN
V2
15k VOFF = 0 V3
NJM2903
VAMPL = 0
FREQ = 0 V1 5
V4 AC = 1m
DC = -6.9793m
0Vdc
5
0
Comparison Table
RL = 15k Measurement Simulation %Error
Av (dB) 106 105.599 -0.3783
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

9. Input Bias Current Characteristics
Simulation result
Ib
IIO
Evaluation Circuit
U1
AOUT V+
A-IN A BOUT
- +
A+IN B B-IN
+ -
RL
GND B+IN
15k
V2
NJM2903
V3
0Vdc
V1 5
V4 0Vdc
5
0
Comparison Table
Measurement Simulation % Error
Ib (nA) 50 49.804 -0.3920
IIO (nA) 250 246.035 -1.5860
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005